NGAP: Add UESecurityCapabilities IE to PathSwitchRequestAcknowledge
This IE is now used by Open5GS, so add it to the receive template.
This fixes C5G_Tests.TC_handover_inter_ngran_xn.
Note that there is also a pull request to fix the location of this IE in Open5GS. (https://github.com/open5gs/open5gs/pull/4589) Without this fix the test case will fail.
C5G: Release UE Context before sending Service request
A recent fix in Open5GS rejects RAN_UE_NGAP_ID in InitialUEMessage. This causes all tests to fail that send a subsequent InitialUEMessage with the same RAN_UE_NGAP_ID.
Release the UE Context before re-using the RAN_UE_NGAP_ID, because the connection handler can only handle one context at a time.
Note that the AMF_UE_NGAP_ID is incremented by Open5GS for every context.
This fixes: TC_ue_service_request_cm_idle_inact_sess TC_ue_service_request_cm_idle_ul_data TC_ue_service_request_cm_idle_unknown_sess_active
RemsimServer Tests: give the remsim server some time to update the slotmap
The check of the slotmap can race if it is requests straight away, because the slotmap might be still in the slotmap list as long the bankd hasn't responded yet.
BSSAP(_LE)/RANAP: Proper counting of RESET retries
N retries means N+1 attempts.
Since M3UA_Emulation (in deps/, not in library) doesn't support pushing DUNA/DAVA as primitive up the stack, we cannot implement the related SCCP primitives which should end up sending in turn other primitives to our BSSAP(_LE)/RANAP emulations. This means we currently have no way to figure out the status of the underlying SCCP/MTP link, and our only way is implement a poor man's solution: retransmit RESET until we get an answer.
Since before bssap_reset_retries was set to 1 everywhere and we were only attempting once, it could happen that the other end (the IUT) was not yet connected to the STP when we send the RESET, and hence it is discarded the STP. In that scenario, we'd time out and fail the test. Instead, now that we do N+1 attempts, we retry after 5 seconds, which should be enough time for the peer to reconnect to the STP.
